/* Copyright (C) 2004 - 2006  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
namespace Db4objects.Db4o.Internal.Query.Result
{
	/// <exclude></exclude>
	public class LazyQueryResult : Db4objects.Db4o.Internal.Query.Result.AbstractLateQueryResult
	{
		public LazyQueryResult(Db4objects.Db4o.Internal.Transaction trans) : base(trans)
		{
		}

		public override void LoadFromClassIndex(Db4objects.Db4o.Internal.ClassMetadata clazz
			)
		{
			_iterable = ClassIndexIterable(clazz);
		}

		public override void LoadFromClassIndexes(Db4objects.Db4o.Internal.ClassMetadataIterator
			 classCollectionIterator)
		{
			_iterable = ClassIndexesIterable(classCollectionIterator);
		}

		public override void LoadFromQuery(Db4objects.Db4o.Internal.Query.Processor.QQuery
			 query)
		{
			_iterable = new _AnonymousInnerClass28(this, query);
		}

		private sealed class _AnonymousInnerClass28 : System.Collections.IEnumerable
		{
			public _AnonymousInnerClass28(LazyQueryResult _enclosing, Db4objects.Db4o.Internal.Query.Processor.QQuery
				 query)
			{
				this._enclosing = _enclosing;
				this.query = query;
			}

			public System.Collections.IEnumerator GetEnumerator()
			{
				return query.ExecuteLazy();
			}

			private readonly LazyQueryResult _enclosing;

			private readonly Db4objects.Db4o.Internal.Query.Processor.QQuery query;
		}
	}
}
